how to generate the black bars at top and bottom?
Posted: 15 Jan 2015 16:02
Ok, let's say I have a video file that is 720 x 480 and has a display aspect ratio of 4:3.
EDITED: [Sorry, I had done an incorrect calc for actual aspect-ratio, so I've removed those statements.]
But, it seems to be a quite common practice for some movie videos to be converted to wide-screen
format, with an aspect ratio of 16:9, with black bars on top and bottom to compensate.
So, here's my actual question:
So, when using VLC (sout) to transcode a video, is there a way to get it to NOT default to producing
the orig aspect-ratio in the input file, but instead produce an indicated 16:9 (by creating the black bars at top and bottom)?
In other words, I want to maintain the original 720x480 resolution, and just change the indicated aspect ratio,
from 4:3 to 16:9.
What cmd-line sout arguments would I use to accomplish that?
[ I thought this would be easy...just to add "--aspect-ratio "16:9" to my cmd-line, but that does NOT
seem to do it. So, what is the correct way, assuming one exists? ]
TIA...
-- Slim
EDITED: [Sorry, I had done an incorrect calc for actual aspect-ratio, so I've removed those statements.]
But, it seems to be a quite common practice for some movie videos to be converted to wide-screen
format, with an aspect ratio of 16:9, with black bars on top and bottom to compensate.
So, here's my actual question:
So, when using VLC (sout) to transcode a video, is there a way to get it to NOT default to producing
the orig aspect-ratio in the input file, but instead produce an indicated 16:9 (by creating the black bars at top and bottom)?
In other words, I want to maintain the original 720x480 resolution, and just change the indicated aspect ratio,
from 4:3 to 16:9.
What cmd-line sout arguments would I use to accomplish that?
[ I thought this would be easy...just to add "--aspect-ratio "16:9" to my cmd-line, but that does NOT
seem to do it. So, what is the correct way, assuming one exists? ]
TIA...
-- Slim